I was there that day but did not try to enter the Capitol for the reasons you stated. I knew nothing good would come of it and it would reflect badly on Trump. In fact, I did not even know the Capitol was penetrated (on the inside) until after I left the scene, because cell service was abysmal and I couldn't get any outside news of what was going on.
Otherwise law-abiding people did get caught up in the moment however and did things like climb the bleachers and mount the Capitol steps (where the inaugurations are held). Maybe they shouldn't even have done that but what they did was certainly not criminal. One should also take into account the surge of the crowd. When Trump asked us to go to the Capitol (after the rally), I was led to believe we were going to be standing behind barricades where we would wave our flags and be heard. But when we arrived, all barricades were down and we were all pretty much surging closer and closer to the building itself. Some turned to leave but it was rough going as there were tens of thousands of people you had to fight through to get yourself back on the street.
There were bad actors trying to incite us and lead us on. I remember a guy with a bullhorn shouting MOVE FORWARD, MOVE FORWARD.